[PATCH] iio: light: tsl2591: return actual error from probe IRQ failure

[Stepan Ionichev <sozdayvek@gmail.com>]

When devm_request_threaded_irq() fails, probe calls dev_err_probe()
but then returns -EINVAL, dropping the real error code and breaking
the deferred-probe flow that dev_err_probe() handles for -EPROBE_DEFER.

Return the value from dev_err_probe() instead.

Fixes: 2335f0d7c790 ("iio: light: Added AMS tsl2591 driver implementation")
Signed-off-by: Stepan Ionichev <sozdayvek@gmail.com>
---
 drivers/iio/light/tsl2591.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/iio/light/tsl2591.c b/drivers/iio/light/tsl2591.c
index c5557867e..4b0a2a302 100644
--- a/drivers/iio/light/tsl2591.c
+++ b/drivers/iio/light/tsl2591.c
@@ -1137,10 +1137,8 @@ static int tsl2591_probe(struct i2c_client *client)
 						NULL, tsl2591_event_handler,
 						IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
 						"tsl2591_irq", indio_dev);
-		if (ret) {
-			dev_err_probe(&client->dev, ret, "IRQ request error\n");
-			return -EINVAL;
-		}
+		if (ret)
+			return dev_err_probe(&client->dev, ret, "IRQ request error\n");
 		indio_dev->info = &tsl2591_info;
 	} else {
 		indio_dev->info = &tsl2591_info_no_irq;
-- 
2.43.0